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2009

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Articles 91 - 120 of 834

Full-Text Articles in Animal Sciences

Pet Milk Company, 1949-1957 (Mss 263), Manuscripts & Folklife Archives Sep 2009

Pet Milk Company, 1949-1957 (Mss 263), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Two annual field reports, 1951 and 1954, profiling dairy farmers and their operations in Warren and Simpson Counties in Kentucky as well as Robertson County, Tennessee; also includes miscellaneous copies of the newsletter "Pet Dairy Chats", 1949 to 1957.


Rumen Fermentation Pattern Of Dairy Heifers Fed Restricted Amounts Of Low, Medium, And High Concentrate Diets Without And With Yeast Culture, G. J. Lascano, A. J. Heinrichs Sep 2009

Rumen Fermentation Pattern Of Dairy Heifers Fed Restricted Amounts Of Low, Medium, And High Concentrate Diets Without And With Yeast Culture, G. J. Lascano, A. J. Heinrichs

Dairy Science

Restricted feeding and highconcentratediets are potential strategies for growing dairyheifers. Ruminal manipulation with additives such as Saccharomyces cerevisiaeyeastculture (YC) has been shown to alter digestibility when added to this type of diet. An experiment was conducted to investigate the ruminal fermentation and in situ digestibility of diets with 3 different levels of forage to concentrate (F:C) fed at restricted intake without and with YC addition. Three cannulated post-pubertal Holstein heifers (age 18.0 ± 1.2 months; body weight 449.6 ± 19.7 kg) were feddiets consisting of corn silage as the sole forage source in a 3 period (35-day) Latin square …


Phil Tong On Nutritious Frozen Dairy, Phillip S. Tong Sep 2009

Phil Tong On Nutritious Frozen Dairy, Phillip S. Tong

Dairy Science

No abstract provided.


Response To Displaced Neighbours In A Territorial Songbird With A Large Repertoire, Elodie F. Briefer, Thierry Aubin, Fanny Rybak Sep 2009

Response To Displaced Neighbours In A Territorial Songbird With A Large Repertoire, Elodie F. Briefer, Thierry Aubin, Fanny Rybak

Ethology Collection

Neighbour recognition allows territory owners to modulate their territorial response according to the threat posed by each neighbour and thus to reduce the costs associated with territorial defence. Individual acoustic recognition of neighbours has been shown in numerous bird species, but few of them had a large repertoire. Here, we tested individual vocal recognition in a songbird with a large repertoire, the skylark Alauda arvensis. We first examined the physical basis for recognition in the song, and we then experimentally tested recognition by playing back songs of adjacent neighbours and strangers. Males showed a lower territorial response to adjacent neighbours …


Automatic Recognition Of Frog Calls Using A Multi-Stage Average Spectrum, Wen-Ping Chen, Song-Shyong Chen, Chun-Cheng Lin, Ya-Zhung Chen, Wen-Chih Lin Sep 2009

Automatic Recognition Of Frog Calls Using A Multi-Stage Average Spectrum, Wen-Ping Chen, Song-Shyong Chen, Chun-Cheng Lin, Ya-Zhung Chen, Wen-Chih Lin

Bioacoustics Collection

The automatic recognition of animal sounds is one of the powerful techniques for replacing the traditional ecological survey method that mainly depends on manpower, which is hence both costly and time consuming. This study developed an automatic frog call recognition system based on the combination of a pre-classification method of the syllable lengths and a multi-stage average spectrum (MSAS) method. In this system, the input frog syllables are first classified into one of the four groups determined by the pre-classification method according to syllable length. Then the proposed MSAS method is used to extract the standard feature template to analyze …


Lying Behavior: Assessing Within- And Betweenherd Variation In Free-Stall-Housed Dairy Cows, K. Ito, D. M. Weary, M. A. G. Von Keyserlingk Sep 2009

Lying Behavior: Assessing Within- And Betweenherd Variation In Free-Stall-Housed Dairy Cows, K. Ito, D. M. Weary, M. A. G. Von Keyserlingk

Housing and Confinement of Farm Animals Collection

One of the most important design criteria for dairy cow housing is access to a comfortable lying area. Behaviors such as the time cows spend lying down and how often they lie down can be used to evaluate the quality of stalls; however, assessing lying behavior on farms can be challenging. Indices such as the cow comfort index (CCI) and stall use index (SUI) have been widely used in on-farm assessments. The aims were to establish reliable sampling and recording methods for measuring lying behavior, to evaluate the adequacy of the CCI and SUI as estimates of lying behavior, and …


Five Year Management Strategy For The Recreational Trout Fishery. Discussion Paper For Public Comment On Future Management., The Rfac’S Recreational Freshwater Fisheries Stakeholder Sub-Committee Sep 2009

Five Year Management Strategy For The Recreational Trout Fishery. Discussion Paper For Public Comment On Future Management., The Rfac’S Recreational Freshwater Fisheries Stakeholder Sub-Committee

Fisheries Management Papers

The Recreational Fishing Advisory Committee (RFAC) was concerned over the delay in time in progressing this issue and recommended that the issue of trout stocking for recreational purposes be progressed in isolation. This matter was referred to the Recreational Freshwater Fisheries Stakeholder Sub-Committee (RFFSS) to progress the recreational aspects of stocking trout within State public waters. This strategy represents a significant step in ensuring the appropriate level of management is provided for the translocation of trout into and within Western Australia for recreational purposes. It is also hoped that this policy will serve as a guide for the management and …


Long-Tailed Jaegers In Western Nebraska, Stephen J. Dinsmore Sep 2009

Long-Tailed Jaegers In Western Nebraska, Stephen J. Dinsmore

Nebraska Bird Review

The Long-tailed Jaeger is an accidental migrant in Nebraska with just one accepted record through the mid-1990s. Based on records from adjacent states, especially Colorado (Andrews and Righter 1992) and Wyoming (Faulkner 2010), the species is probably more frequent than these records indicate, and its status is further complicated by possible confusion with Pomarine and Parasitic jaegers. In this article I report details of four records of Long-tailed Jaegers in western Nebraska and comment on the species' identification and status in the state.


Nebraska Bird Review (September 2009) 77(3), Whole Issue Sep 2009

Nebraska Bird Review (September 2009) 77(3), Whole Issue

Nebraska Bird Review

Summer Field Report, June–July 2009 ... 94

Long-tailed Jaegers in Western Nebraska ... 110

The Official List of the Birds of Nebraska: 2009 ... 112

Accidental and Casual Species for Which the Nebraska Ornithologists’ Union Records Committee Seeks Documentation ... 131

Editorial Staff Change ... 133

Subscription and Organization Information ... 135


Subscription And Organization Information [September 2009] Sep 2009

Subscription And Organization Information [September 2009]

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $15 in the United States, $18 in Canada, and $30 in all other countries, payable in advance. Single copies are $4 each, postpaid, in the United States, $5 in Canada, and $8 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101.

Memberships in the NOU (on a calendar-year basis only): Active, $15; …


Impact Of Weed Management Practices On Grapevine Growth, Yield Components, Plant And Arthropod Abundance, And Carabid Seed Predation In Paso Robles Vineyard, Paolo Sanguankeo Sep 2009

Impact Of Weed Management Practices On Grapevine Growth, Yield Components, Plant And Arthropod Abundance, And Carabid Seed Predation In Paso Robles Vineyard, Paolo Sanguankeo

Master's Theses

In the Central Coast of California, USA, wine grape growers are making efforts to identify weed control practices that promote biodiversity in their vineyards while maintaining yields. A field study was conducted in Paso Robles, CA in 2006 and 2007 evaluating the effect on Zinfandel grape-vine growth and production, groundcover plant, and ground dwelling arthropod communities of five weed control practices: 1) flumioxazin, 2) simazine, 3) cultivation, 4) cover crop, and 5) untreated control.

The herbicide treatments had the lowest weed biomass followed by the cultivation, being approximately 10 and 2 times lower than the weed biomass of either the …


Fisheries Occasional Publication No. 71 - Western Rock Lobster Low Puerulus Settlement Risk Assessment - Draft Report For Public Comment 2009, Rhys Brown Sep 2009

Fisheries Occasional Publication No. 71 - Western Rock Lobster Low Puerulus Settlement Risk Assessment - Draft Report For Public Comment 2009, Rhys Brown

Fisheries Occasional Publications

The Western Rock Lobster Low Puerulus Risk Assessment report is designed to inform the fishing community, stakeholders and general public about the two day workshop that was held on the 1st and 2nd of April 2009 to assess the risks associated with the recent low puerulus settlements that have occurred in the western rock lobster fishery.

A draft report was released for public comment on 1 July 2009 and submissions closed on 30 July 2009. No submissions were received.


Fisheries Occasional Publication No.70 - Stakeholder Survey 2008, Tara Baharthah Sep 2009

Fisheries Occasional Publication No.70 - Stakeholder Survey 2008, Tara Baharthah

Fisheries Occasional Publications

A telephone survey of Department of Fisheries’ stakeholders was conducted in August 2008 in order to evaluate their perception of the Department’s management of commercial and recreational fishing, pearling and aquaculture, and fish and fish habitat protection. The survey also assessed satisfaction with the level of service provided to stakeholders and their involvement in decision making processes. The results of this survey were compared to similar surveys conducted during 2002, 2004, 2006 and a survey of the general public conducted during 2008. The sample comprised of 149 interviews – 39 representing the commercial fishing sector, 41 representing the recreational fishing …


Accidental And Casual Species For Which The Nebraska Ornithologists’ Union Records Committee Seeks Documentation Sep 2009

Accidental And Casual Species For Which The Nebraska Ornithologists’ Union Records Committee Seeks Documentation

Nebraska Bird Review

A list of 117 species (Black-bellied Whistling Duck, Taiga Bean-Goose, Emperor Goose, Brant, Eurasian Wigeon, etc.) for which the Nebraska Ornithologists’ Union Records Committee seeks documentation.


Summer Field Report, June-July 2009, W. Ross Silcock Sep 2009

Summer Field Report, June-July 2009, W. Ross Silcock

Nebraska Bird Review

This was an interesting summer, with range expansions of multiple species continuing in all directions, but predominantly northward. Exceptions to the northward trend were Trumpeter Swan, which bred south of its usual western Sandhills range, and Sedge Wren, which may be occurring in June in northeast Nebraska in greater numbers. Moving eastward are Western Wood-Pewee, which now overlaps with westward-moving Eastern Wood-Pewee in Lincoln Co, Cordilleran Flycatcher in the Pine Ridge, and Lesser Goldfinch in the west. Song Sparrow is also expanding south and west. No fewer than 16 species are moving north and/or northwestward. Several species were seen more …


The Official List Of The Birds Of Nebraska: 2009 Sep 2009

The Official List Of The Birds Of Nebraska: 2009

Nebraska Bird Review

The “Official List of the Birds of Nebraska: 2009” contains 454 species.

The duties of NOU Records Committee (NOU Records Committee 1986) include:

A. The committee shall publish an official list of the birds of Nebraska.

B. The official list will include all those species whose occurrence has been reported in Nebraska.

C. The committee shall keep the official list current.

D. The committee shall publish a list of species for which details are requested with every sighting reported.

The 2009 NOU Records Committee has completed the above duties and the following is the result of its endeavors. This work …


Editorial Staff Change Sep 2009

Editorial Staff Change

Nebraska Bird Review

Steve Dinsmore has generously assisted the Nebraska Bird Review editors for nine years, and now he is bowing out. With this issue, Joe Gubanyi is the new technical editor of the NBR. Joe is a professor of biology in the Natural Science Department at Concordia University in Seward. He has a B.S. Ed. from Concordia, an M.S. and a Ph.D. in Wildlife Ecology from the University of Nebraska at Lincoln. He has taught biology, genetics, ecology, vertebrate zoology, and ornithology and has led study tours to Belize and Costa Rica. He is the compiler of the Branched Oak–Seward Christmas …


Genetics And Pathogenesis Of Feline Infectious Peritonitis Virus, Meredith Brown, Jennifer L. Troyer, Jill Pecon-Slattery, M. Roelke-Parker, Stephen J. O'Brien Sep 2009

Genetics And Pathogenesis Of Feline Infectious Peritonitis Virus, Meredith Brown, Jennifer L. Troyer, Jill Pecon-Slattery, M. Roelke-Parker, Stephen J. O'Brien

Biology Faculty Articles

Feline coronavirus (FCoV) is endemic in feral cat populations and cat colonies, frequently preceding outbreaks of fatal feline infectious peritonitis (FIP). FCoV exhibits 2 biotypes: the pathogenic disease and a benign infection with feline enteric coronavirus (FECV). Uncertainty remains regarding whether genetically distinctive avirulent and virulent forms coexist or whether an avirulent form mutates in vivo, causing FIP. To resolve these alternative hypotheses, we isolated viral sequences from FCoV-infected clinically healthy and sick cats (8 FIP cases and 48 FECV-asymptomatic animals); 735 sequences from 4 gene segments were generated and subjected to phylogenetic analyses. Viral sequences from healthy cats were …


Minimizing Disease In Your Sheep Flock, A Guide To Preventive Flock Health, Kerry A. Rood, C Kim Chapman Sep 2009

Minimizing Disease In Your Sheep Flock, A Guide To Preventive Flock Health, Kerry A. Rood, C Kim Chapman

All Current Publications

This publication serves as a guide to preventative sheep flock health that explains risks, nutrition, vaccinations, etc.


Identification And Manipulation Of Resistance To Tomato Spotted Wilt Virus Derived From Solanum Peruvianum, Luis F. Gordillo Jr. Aug 2009

Identification And Manipulation Of Resistance To Tomato Spotted Wilt Virus Derived From Solanum Peruvianum, Luis F. Gordillo Jr.

Theses and Dissertations

The domesticated tomato Solanum lycopersicum (L.), formerly known as Lycopersicon esculentum is a genetically well-studied crop species with high-density linkage and molecular maps based on crosses done between cultivated tomato and its distant related wild species. Wild tomato species harbor a wealth of resistance to many pathogens that have been introgressed into domesticated tomato for genetic control of diseases and pests and for improvement of many agronomic traits. The wild tomato S. peruvianum (L.) is the source of the Sw-5 gene, characterized and mapped to chromosome 9 of the tomato genome and introgressed into elite tomato germplasm, providing resistance to …


Mapping The Dorsal Skin Pigmentation Patterns Of Two Sympatric Populations Of Ambystomatid Salamanders, Ambystoma Opacum And A. Maculatum From Northeast Tennessee., Lok Raj Pokhrel Aug 2009

Mapping The Dorsal Skin Pigmentation Patterns Of Two Sympatric Populations Of Ambystomatid Salamanders, Ambystoma Opacum And A. Maculatum From Northeast Tennessee., Lok Raj Pokhrel

Electronic Theses and Dissertations

Because of growing concern of habitat fragmentation and its adverse effects on salamander communities in Appalachian region, sympatric populations of ambystomatid salamanders A. opacum and A. maculatum were studied in Northeast Tennessee to address a number of questions: i) the extent of sexual size dimorphism (SSD) in both species, ii) what traits influence the dorsal skin pigmentation and how, iii) whether gender differences in developmental stability occur, and iv) the extent of phenotypic variation within each species. The findings of this study revealed SSD in both species of salamanders. The most parsimonious statistical model was developed that explained the influence …


Song Of The North Wind: A Story Of The Snow Goose, Paul A. Johnsgard, Paul Geraghty Aug 2009

Song Of The North Wind: A Story Of The Snow Goose, Paul A. Johnsgard, Paul Geraghty

Papers in Ornithology

As a boy in North Dakota, Paul Johnsgard measured his winters, not by conventional time units, but in the days it took for the snow geese to return from their wintering grounds to Lake Traverse. In early April, with hip boots, camera, and binoculars, he awaited the arrival of the first flocks from the Gulf of Mexico. Johnsgard was not alone in admiring the beauty and strength of the snow goose. For centuries this bird has signified the passing seasons to the Indians—its white feathers a symbol of the breath of life and a reminder of the roles the birds …


Biofuels: Cultivating Energy, Not Invasive Species, Invasive Species Advisory Committee Aug 2009

Biofuels: Cultivating Energy, Not Invasive Species, Invasive Species Advisory Committee

National Invasive Species Council

Biofuels: Cultivating Energy, not Invasive Species, approved by ISAC on August 11, 2009

ISSUE

To provide alternatives to petroleum-based energy, the United States government has mandated a greater proportion of plant-based biofuels be integrated into its energy portfolio. However, certain plant species being proposed for biofuel production in the United States are invasive species or are likely to escape cultivation and become invasive. United States Executive Order (EO) 131121 defines invasive species as “alien [non-native] species whose introduction does or is likely to cause economic or environmental harm or harm to human health” and states: “Each Federal agency whose actions …


Stable Carbon Isotope Evidence Of Ancient Maya Agriculture At Tikal, Guatemala, Richard Lee Burnett Aug 2009

Stable Carbon Isotope Evidence Of Ancient Maya Agriculture At Tikal, Guatemala, Richard Lee Burnett

Theses and Dissertations

Stable carbon isotope analyses of the humin fraction of the soil organic matter were conducted on more than 160 soil profiles from Tikal, Guatemala. The profiles were collected from near areas associated with the earthworks of Tikal; an ancient ditch and parapet construction hypothesized to have formed ancient boundaries of the polity. In addition to the isotope analyses, the physical and chemical characteristics of the horizons were determined. Maize, a C4 plant, formed an integral part of the ancient Maya diet and is the only known C4 plant cultivated by the Maya. Prior to and subsequent to the ancient Maya …


Kentucky Warbler (Vol. 85, No. 3), Kentucky Library Research Collections Aug 2009

Kentucky Warbler (Vol. 85, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Preference And Usage Of Pasture Versus Free-Stall Housing By Lactating Dairy Cattle, A. L. Legrand, M. A. G. Von Keyserlingk, D. M. Weary Aug 2009

Preference And Usage Of Pasture Versus Free-Stall Housing By Lactating Dairy Cattle, A. L. Legrand, M. A. G. Von Keyserlingk, D. M. Weary

Housing and Confinement of Farm Animals Collection

The aim of the current study was to assess if cows preferred pasture or indoor housing, and how diurnal and environmental factors affected this preference. Lactating dairy cows (n = 5 groups, each containing 5 cows) were sequentially housed either in a free-stall barn on pasture, or given the choice between the 2 environments. Each group was tested 3 times under each condition, for a total of 21 d, to assess the effects of varying climatic conditions (outdoor temperature ranged from 9.9 to 28.2°C and daily rainfall from 0 to 65 mm/d over the course of the experiment). When provided …


Preference For Pasture Versus Freestall Housing By Dairy Cattle When Stall Availability Indoors Is Reduced, A. C. Falk, D. M. Weary, C. Winckler, M. A. G. Von Keyserlingk Aug 2009

Preference For Pasture Versus Freestall Housing By Dairy Cattle When Stall Availability Indoors Is Reduced, A. C. Falk, D. M. Weary, C. Winckler, M. A. G. Von Keyserlingk

Housing and Confinement of Farm Animals Collection

Providing cattle with access to pasture has been shown to yield benefits, including access to more space, fewer agonistic interactions, better air quality, and the ability to perform a greater range of normal behaviors. Preference for pasture appears to depend on several parameters, including weather conditions and availability of shade. The primary aim of this study was to evaluate the preference for pasture versus inside a freestall barn with variable stocking densities at the stalls. We also investigated the effect of temperature-humidity index (THI) and precipitation on this preference. Overall, cows spent on average 13.7 ± 2.6 h/d (mean ± …


Fisheries Research Report No. 194 - Conceptual Models For Ecosystem Based Fisheries Management (Ebfm) In Western Australia, Sarah J. Metcalf, D J. Gaughan, Jennifer Shaw Aug 2009

Fisheries Research Report No. 194 - Conceptual Models For Ecosystem Based Fisheries Management (Ebfm) In Western Australia, Sarah J. Metcalf, D J. Gaughan, Jennifer Shaw

Fisheries Research Reports

The Department of Fisheries, Western Australia is currently developing a framework to assess the most appropriate methodologies for the implementation of Ecosystem Based Fisheries Management (EBFM) in Western Australia. The implementation of EBFM can be considered as an operational extension of Ecologically Sustainable Development (ESD), the principles of which were adopted by Western Australia for application in the management of fisheries in 2002. EBFM aims to assess and manage ecological impacts as well as social and economic outcomes related to fish and fisheries at a regional level. The degree to which EBFM will be implemented in terms of activities or …


Fisheries Management Paper No.245 - Aquaculture Of Coral, Live Rocks And Associated Products. Aquaculture Policy, Department Of Fisheries, Western Australia Aug 2009

Fisheries Management Paper No.245 - Aquaculture Of Coral, Live Rocks And Associated Products. Aquaculture Policy, Department Of Fisheries, Western Australia

Fisheries Management Papers

Aquarium enthusiasts use corals, live rock and associated products (e.g. live sand) for display and to maintain healthy water quality conditions in their marine aquariums. There is a large and growing market for these products. While the wild harvest fisheries for aquarium products in Western Australia are sustainably managed, output is capped, so increased product is needed to meet the market demand. With a trend towards the capping of wild harvest and additional pressures, such as the introduction of Marine Parks and other marine protected areas, the aquaculture of these products is set for industry development and expansion.

The large …


A Nebraska Bird-Finding Guide, Paul A. Johnsgard Aug 2009

A Nebraska Bird-Finding Guide, Paul A. Johnsgard

Papers in Ornithology

Persons living in Nebraska often feel that they are living in a cultural wasteland; its citizenry preoccupied with violent sports such as hunting and football. Yet many are unaware that they are actually residing in one of the prime locations in the entire world for observing and enjoying some of the most aesthetically appealing of all the world's biological attractions. The area around Kingsley Dam and Lake McConaughy, for example, is known to have attracted more than 330 bird species, including 104 breeders (plus 17 probable breeders) making it the third-most species-rich bird location in the interior U.S.A. (after Laguna …